The Ohio State Universities | University Libraries | Resource Guides

Open Educational Resources

Open Textbook Library

A catalog of openly-licensed textbooks, many with reviews from college instructors.

OpenStax College

Free, open-source, peer-reviewed college textbooks primarily for introductory courses in science, math, economics, psychology, and sociology.

Teaching Commons

Open educational resources from leading colleges and universities, including textbooks.

Open Book Publishers

Monographs and textbooks primarily in the humanities and social sciences.


A clearinghouse of member-submitted learning materials, including textbooks, exercises, presentations, etc.

OER Commons

Clearinghouse of OERs.

OSUL Copyright Resources Center Guide to Finding Public Domain and Openly Licensed Materials